Hypercholesterolemia is the term for high levels of cholesterol in the blood. It is a metabolic problem that can be secondary to many diseases and contributes to many forms of disease, including cardiovascular disease. Abnormal levels of the particles that carry cholesterol in the bloodstream can lead to elevated cholesterol levels. This may be related to diet, genetic factors and other diseases such as diabetes and an underactive thyroid.
There are no specific symptoms of elevated cholesterol unless you have already had it a long time.
Some of the most common causes of high cholesterol include: